Fortinet FortiClient/FortiMail/FortiOS up to 6.2.168/6.4.274 AV Engine data authenticity
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.2 | $0-$5k | 0.00 |
A vulnerability has been found in Fortinet FortiClient, FortiMail and FortiOS up to 6.2.168/6.4.274 (Firewall Software) and classified as problematic. This vulnerability affects an unknown function of the component AV Engine. The manipulation with an unknown input leads to a data authenticity vulnerability. The CWE definition for the vulnerability is CWE-345. The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data. As an impact it is known to affect integrity, and availability. CVE summarizes:
An insufficient verification of data authenticity vulnerability [CWE-345] in FortiClient, FortiMail and FortiOS AV engines version 6.2.168 and below and version 6.4.274 and below may allow an attacker to bypass the AV engine via manipulating MIME attachment with junk and pad characters in base64.
The weakness was published 11/02/2022. The advisory is shared for download at fortiguard.com. This vulnerability was named CVE-2022-26122 since 02/25/2022. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.2VulDB Meta Temp Score: 6.2
VulDB Base Score: 5.4
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 8.6
NVD Vector: 🔍
CNA Base Score: 4.7
CNA Vector (Fortinet, Inc.): 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Data authenticityCWE: CWE-345
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
02/25/2022 🔍11/02/2022 🔍
11/02/2022 🔍
12/03/2022 🔍
Sources
Vendor: fortinet.comAdvisory: fortiguard.com
Status: Confirmed
CVE: CVE-2022-26122 (🔍)
Entry
Created: 11/02/2022 16:04Updated: 12/03/2022 15:04
Changes: 11/02/2022 16:04 (48), 12/03/2022 15:04 (12)
Complete: 🔍
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